4 layers100 × 50 mm
AltReg CAN
Open-Source-Alternator-Regulator/alt-CAD
Support Files for the Alternator Regulator
156 parts
4 layers77.8 × 63.2 mm
Flatmcu
GyrocopterLLC/flatmcu40Hardware design for the flatmcu - an STM32G4 based BLDC / FOC motor controller.
- Size
- 77.8 × 63.2 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 127
- Nets
- 89
- Pads
- 423
- Tracks, vias
- 1,149, 206
- Pours
- 42
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 1 May 2020
- Updated
- 7 Nov 2023
Overview
Flatmcu is an open-source printed circuit board by GyrocopterLLC, from the GyrocopterLLC/flatmcu repository on GitHub, published under the MIT licence. It is a 4-layer board of 77.8 × 63.2 mm with 127 parts on 89 nets, routed with 1,149 tracks and 206 vias.
It is built around the DRV8353RSRGZ, TPS563240DDC and TPW4R50ANH,L1Q, with the BLM18AG601SN1D, PMEG2020EH and PMEG4005EJ among its other parts. Its parts include 50 capacitors, 35 resistors, 11 connectors, 8 transistors and 4 ICs. It belongs with the robots and motor control boards and the STM32 boards of this library.
Main components
6
DRV8353RSRGZ
VQFN-48-EP(7x7)-40℃~+125℃ 1.5V 1A 20uA 2A 3 6V~95V 800mV MOSFET Three Phase Under Voltage Protection、Over Current Protection、Overtemperature protection (OTP)、Enable shutdown、Interleaved conduction protection、Dead-time control、Charge pump boost VQFN-48-EP(7x7) Gate Drivers ROHSTexas InstrumentsBrushless DC (BLDC) Motor Driver
TPS563240DDC
TSOT-23-6-40℃~+125℃@(TJ) 1 1.4MHz 235uA 3A 4.5V~17V 600mV~7V Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting Step-down type Yes TSOT-23-6 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
TPW4R50ANH,L1Q
DSOP-8-EP-5.0mm1 N-channel 100V 4.5mΩ@10V 4V 92A DSOP-8-EP-5.0mm MOSFETs ROHSToshibaMOSFETs
BLM18AG601SN1D
0603-55℃~+125℃ 1 380mΩ 500mA 600Ω@100MHz ±25% 0603 Ferrite Beads ROHSMurataFerrite Beads
PMEG2020EH
SOD-123F1 Independent 200uA@20V 20V 2A 525mV@2A 9A SOD-123F Schottky Diodes ROHSNexperiaSchottky Diodes
PMEG4005EJ
SOD-323F1 Independent 100uA@40V 10A 40V 470mV@500mA 500mA SOD-323F Schottky Diodes ROHSNexperiaSchottky Diodes
README
README.mdflatmcu
Hardware design for the flatmcu - an STM32G4 based BLDC / FOC motor controller.
Features
All schematic and layout was created with KiCad EDA (https://kicad.org).
The controller is based on the STM32G473CB microcontroller from ST Microelectronics. It contains an ARM Cortex-M4 core at up to 170MHz. The three-phase bridge driver is the TI DRV8353RS, which also contains shunt resistor current sensors and a 95V buck regulator.
The MOSFETs in the three-phase bridge (Toshiba TPW4R50ANH) are dual-side cooling. There's a large metal pad on top of them. A heatsink should be attached there. The opposite side of the board is intended for soldering on the large battery and phase wires.
Schematic
Main
Microcontroller
Three-phase bridge
Parts
127| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C6, C10, C19, C38, C39, C42, C43, C44, C47, C49, C50 |
| 9 | 1n | Capacitor_SMD:C_0603_1608Metric | C2, C3, C4, C5, C7, C25, C31, C34, C48 |
| 8 | 1k | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R14, R21, R24, R27, R31 |
| 7 | 10k | Resistor_SMD:R_0603_1608Metric | R6, R7, R8, R9, R11, R33, R35 |
| 7 | 1u | Capacitor_SMD:C_0603_1608Metric | C11, C13, C16, C20, C22, C23, C45 |
| 6 | TPW4R50ANH | Custom:Toshiba_DSOP-Advance | Q1, Q2, Q3, Q4, Q5, Q6 |
| 4 | 1u | Capacitor_SMD:C_1206_3216Metric | C15, C28, C33, C36 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 10n | Capacitor_SMD:C_0603_1608Metric | C24, C40, C46 |
| 3 | 2.2n | Capacitor_SMD:C_0603_1608Metric | C32, C35, C37 |
| 3 | 2.5m | Resistor_SMD:R_2512_6332Metric | R18, R22, R28 |
| 3 | 22k | Resistor_SMD:R_0603_1608Metric | R23, R26, R30 |
| 3 | Net-Tie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1, NT2, NT3 |
| 3 | TestPoint | Connector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_Vertical | TP1, TP2, TP3 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric | R15, R19 |
| 2 | 100n | Capacitor_SMD:C_0805_2012Metric | C17, C18 |
| 2 | 22 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 330 | Resistor_SMD:R_0603_1608Metric | R32, R34 |
| 2 | 4.02k | Resistor_SMD:R_0603_1608Metric | R20, R25 |
| 2 | 4.7u | Capacitor_SMD:C_1210_3225Metric | C9, C14 |
| 2 | 4.7u | Capacitor_SMD:C_0805_2012Metric | C29, C30 |
| 2 | BLM18AG601SN1D | Resistor_SMD:R_0603_1608Metric | FB1, FB2 |
| 2 | Q_NMOS_GSD | Package_TO_SOT_SMD:SOT-23 | Q7, Q8 |
| 1 | 0 | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 1.5u | Custom:Bourns_SRN3015 | L2 |
| 1 | 100u | Custom:NR6045 | L1 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 1u | Capacitor_SMD:C_1210_3225Metric | C8 |
| 1 | 220k | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 330p | Capacitor_SMD:C_0603_1608Metric | C26 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C41 |
| 1 | 4.99k | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 47n | Capacitor_SMD:C_0805_2012Metric | C21 |
| 1 | 47n | Capacitor_SMD:C_0603_1608Metric | C27 |
| 1 | 73.2k | Resistor_SMD:R_0603_1608Metric | R29 |
| 1 | 8.2k | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | AP1117-33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | DNP | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | DRV8353RS | Custom:TI-RGZ-48-QFN | U3 |
| 1 | GND | Connector_Wire:SolderWirePad_1x01_SMD_5x10mm | J11 |
| 1 | Hall | Connector_JST:JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | J1 |
| 1 | LED_Dual_AACC | LED_SMD:LED_RGB_1210 | D3 |
| 1 | Motor_Phase_A | Connector_Wire:SolderWirePad_1x01_SMD_5x10mm | J4 |
| 1 | Motor_Phase_B | Connector_Wire:SolderWirePad_1x01_SMD_5x10mm | J5 |
| 1 | Motor_Phase_C | Connector_Wire:SolderWirePad_1x01_SMD_5x10mm | J6 |
| 1 | PMEG2020 | Diode_SMD:D_SOD-323F | D4 |
| 1 | PMEG4005 | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | SS1H10-E3/61T | Diode_SMD:D_SMA | D2 |
| 1 | STM32G431CBTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U4 |
| 1 | SW Debug | Connector_JST:JST_SH_SM05B-SRSS-TB_1x05-1MP_P1.00mm_Horizontal | J7 |
| 1 | TPS563240 | Package_TO_SOT_SMD:SOT-23-6 | U5 |
| 1 | Thermistor | Resistor_SMD:R_0603_1608Metric | TH1 |
| 1 | Throttle | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J3 |
| 1 | UART to BMS | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J9 |
| 1 | UART to HBD | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J8 |
| 1 | USB_B_Micro | Custom:USB_Micro_B_Female_10118193-0001LF | J2 |
| 1 | VBUS | Connector_Wire:SolderWirePad_1x01_SMD_5x10mm | J10 |
Questions
How big is the Flatmcu PCB?
It measures 77.8 × 63.2 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Flatmcu use?
127 parts, built around the DRV8353RSRGZ, TPS563240DDC, TPW4R50ANH,L1Q and BLM18AG601SN1D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Flatmcu KiCad files?
From the GyrocopterLLC/flatmcu repository on GitHub, at the commit this page was made from: the board is design/flatmcu.kicad_pcb and its schematic design/MCU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Flatmcu design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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